maint: Eliminate accidental double spaces in code. * make_int.cc, file-editor-tab.h, file-editor.cc, shortcut-manager.h, __contourc__.cc, cellfun.cc, debug.cc, errwarn.h, graphics.in.h, jit-ir.h, oct-stream.cc, quadcc.cc, qz.cc, sparse-xdiv.cc, symtab.cc, __init_fltk__.cc, ov-class.cc, ov-float.h, ov-scalar.h, op-int.h, CNDArray.cc, CSparse.cc, MSparse.cc, Sparse.cc, boolNDArray.cc, chNDArray.cc, dNDArray.cc, dSparse.cc, fCNDArray.cc, fNDArray.cc, int16NDArray.cc, int32NDArray.cc, int64NDArray.cc, int8NDArray.cc, intNDArray.cc, uint16NDArray.cc, uint32NDArray.cc, uint64NDArray.cc, uint8NDArray.cc, randgamma.h, randmtzig.h, randpoisson.c, randpoisson.h, Sparse-op-defs.h, oct-time.cc, kpse.cc, lo-array-errwarn.h, lo-ieee.h, del2.m, num2str.m, __isequal__.m, lookfor.m, hsv2rgb.m, colorspace_conversion_revert.m, fminbnd.m, create_pkgadddel.m, shading.m, struct2hdl.m, gallery.m, discrete_cdf.m, kolmogorov_smirnov_test.m, assert.m, datestr.m, classes.tst, jit.tst: Eliminate accidental double spaces in code.

--- a/scripts/testfun/assert.m	Tue Mar 29 21:13:22 2016 -0700
+++ b/scripts/testfun/assert.m	Wed Mar 30 15:19:12 2016 -0700
@@ -480,10 +480,10 @@
 %!error <Rel err .* exceeds tol> assert (100, 100+300*eps, -2*eps)
 
 ## test relative vs. absolute tolerances
-%!test  assert (0.1+eps, 0.1,  2*eps);
+%!test  assert (0.1+eps, 0.1, 2*eps);
 %!error <Rel err 2.2204e-0?15 exceeds tol> assert (0.1+eps, 0.1, -2*eps);
 %!test  assert (100+100*eps, 100, -2*eps);
-%!error <Abs err 2.8422e-0?14 exceeds tol> assert (100+100*eps, 100,  2*eps);
+%!error <Abs err 2.8422e-0?14 exceeds tol> assert (100+100*eps, 100, 2*eps);
 
 ## Corner case of relative tolerance with 0 divider
 %!error <Abs err 2 exceeds tol 0.1> assert (2, 0, -0.1)